Rhododendron rarum is a rhododendron species native to the Central and Bismarck Ranges of Papua New Guinea.

It is a compact prostrate shrub with tubular, red flowers and narrowly elliptic leaves.

This species does not tolerate frosts (RHS Hardiness rating H2),[1] so must be grown under cover in temperate climates.

Its small size and prostrate habit make it an ideal subject for a hanging basket or similar.

This Ericaceae article is a stub.